← Domains & DNS
domains by fourzerotwo
IP owner
Network, organisation, range, country and abuse email for an IP, from the regional internet registry.
IP owner 3 free / day
Network, organisation, range, country and abuse email for an IP, from the regional internet registry.
- cost
- 3 free / day then $0.002 / call
- MCP tool
- domains__ip-owner
- method
- GET
3 free calls a day, then $0.002 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/domains/ip-owner
| Param | Type | Description |
|---|---|---|
| ip | string | IPv4 or IPv6 address |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/domains/ip-owner?ip=8.8.8.8" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/domains/ip-owner?ip=8.8.8.8"
by fourzerotwo
Report this endpoint
Use it from an AI agent (MCP)
Add the server once, then ask for this data in plain English. The agent finds the endpoint with search_apis and runs it with call_api.
{
"mcpServers": {
"fourzerotwo": { "type": "http", "url": "https://fourzerotwo.si/mcp" }
}
}
# the call the agent makes
call_api {"tool": "domains__ip-owner", "arguments": {"ip":"8.8.8.8"}}
More from Domains & DNS
- Domain availability — Registered or available, straight from the TLD registry.
- Domain registration facts — Registrar, created, expiry, age, status codes, nameservers and DNSSEC.
- DNS records — A, AAAA, MX, NS, TXT, CNAME and CAA records (or one type).
- DMCA agent — Published DMCA / abuse contact (email or form) for a major platform, host, CDN or registrar.
- Where to report a site — Everyone to send an abuse or takedown report to for a site: platform agent, hosting network (+ abuse email, CD...
- Email authentication check — MX, SPF and DMARC for a domain, the mail provider, issues found and a grade.
- Domain name ideas — Rule-based domain candidates for a keyword: exact, stopword-free, hyphenated, prefixed and suffixed, across ch...
Registration data from registry RDAP services; DNS from live queries.